Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. What Does the Automatic Transmission/Automatic Gearbox Warning Light Mean?

What Does the Automatic Transmission/Automatic Gearbox Warning Light Mean?

What Does the Automatic Transmission/Automatic Gearbox Warning Light Mean?

Modern automatic transmissions are full of sensors so that the computer can easily and accurately monitor things like fluid temperature, fluid level, and the overall pressure inside the transmission. Automatic transmissions are very expensive to replace so it is worth the effort to keep it well maintained.

What the automatic transmission light means

If the computer detects any abnormal readings from the sensors, a code will be stored and the automatic transmission indicator light will turn on to alert the driver of possible issues. Malfunctioning sensors will also give false readings causing the light to come on so always have the sensors tested again. One of the most common issues that causes this indicator light to illuminate is that the transmission fluid temperature is higher than normal.

What to do when the automatic transmission light is on

If this light comes on, it should be checked out as soon as possible. As mentioned earlier, automatic transmissions are very expensive to replace and they can sometimes be salvaged if you act quickly and get the necessary repairs done. You will need to scan the car’s computer for any codes to help determine the cause of the issue. You can check the fluid level and condition of your car’s transmission if it has a dipstick, but this won’t always lead you to the cause of the problem.

Is it safe to drive with the automatic transmission light on?

While the car may not drive differently with the light on, you should have the it checked out as soon as possible before any excessive damage occurs. Driving with this indicator light on for long periods of time is likely to cause a lot of wear to the transmission and reducing its lifespan significantly. Some vehicles may go into what’s called a “limp home” mode. Limp mode will limit the vehicle’s top speed to reduce the strain on the transmission.

If your automatic transmission light stays on, our certified technicians are always available to assist you in identifying any issues.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...

Related questions

Q: Car feels like it has no power

You may have an engine or transmission problem and would need to have a mechanic like one from YourMechanic to do a complete diagnosis to isolate the cause of the problem.

Q: No bus error message on the dashboard.

No Bus refers to the data bus by which the computer (ECM) in the vehicle communicate with each other and with the various components which they read and control. There could be a broken wire, a corroded or loose connection,...

Q: Replaced the air conditioning line twice due to rust

Hello. I would suggest that you get the A/C lines replaced again. Next time the A/C is recharged make sure they completely flush the system by adding fluid back into it, as crazy as it sounds. It's possible to flush it...